body {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
}

.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a1a1a 0%, #2c2c2c 100%);
    padding: 0;
}

.login-form {
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 400px;
}

.login-form h2 {
    text-align: center;
    margin-bottom: 30px;
    color: #333;
    font-family: 'Roboto', sans-serif;
    font-weight: 500;
}

.form-group {
    position: relative;
    margin-bottom: 20px;
}

.form-group .input-icon {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #ff6b35;
    font-size: 16px;
    z-index: 1;
}

.form-group input {
    width: 100%;
    padding: 12px 12px 12px 45px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    font-family: 'Roboto', sans-serif;
    box-sizing: border-box;
    background: #f5f5f5;
    transition: all 0.3s ease;
}

.form-group input::placeholder {
    color: #999;
    font-weight: 400;
}

.form-group input:focus {
    outline: none;
    border-color: #ff6b35;
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.login-btn {
    width: 100%;
    padding: 12px;
    background: #ff6b35;
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s;
}

.login-btn:hover {
    background: #e55a2e;
}

.login-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
}

.message {
    margin-top: 15px;
    padding: 10px;
    border-radius: 5px;
    text-align: center;
}

.message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.back-link {
    text-align: center;
    margin-top: 20px;
}

.back-link a {
    color: #ff6b35;
    text-decoration: none;
}

.back-link a:hover {
    text-decoration: underline;
}

.logo-container {
    text-align: center;
    background: black;
    border-radius: 10px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

.logo-container img {
    width: 100%;
    height: auto;
    object-fit: contain;
    filter: brightness(1.1);
    display: block;
    margin: 0 auto;
}